Asymmetric cyanine dyes (and their dimers) of generic formula:
A-(CH=CH)n-CH=B
where
A ≡ 3-methyl-benzoxazolium or benzthiazolium iodide,
B ≡ 4-(N-trimethylaminopropyl)-pyridinium or quinolinium iodide,
and
n = 0 or 1
are used as fluorescent stains for staining reticulocytes in flow cytometric. A typical example is the thiazole orange dimer, TOTO-3.
By
suitable choice of components, the absorption maximum of the dye-RNA complex can be adjusted to allow the use of cheap, compact laser sources, e.g. Hc/Nc or laser diodes.
通式不对称
氰基
染料(及其二聚体):
A-(CH=CH)n-CH=B
其中
A ≡ 3-甲基
苯并恶唑鎓或
苯并噻唑鎓
碘化物、
B ≡ 4-(N-三甲基
氨基丙基)-
吡啶鎓或
碘化
喹啉鎓、
和
n = 0 或 1
作为荧光染色剂,可在流式细胞仪中对网状细胞进行染色。一个典型的例子是
噻唑橙二聚体 TOTO-3。
通过
通过适当选择成分,可调整
染料-RNA 复合物的吸收最大值,以便使用廉价、紧凑的激光源,如 Hc/Nc 或激光二极管。